Abstract

Contact no: 9970131164 Abstract — The cloud storage has a lot of problems about the security and data Integrity. So we need to prevent the all problems. In cloud storage users can remotely store their data and enjoy the on-demand high quality applications and services from shared resources, without the burden of local data storage and maintenance. Users are not able to check his data again and again from the cloud storage it is secure or not. Moreover, users should be able to just use the cloud storage as if it is local, without worrying about the need to verify its integrity. Thus, enabling public auditability for cloud storage is of critical importance so that users can resort to a third party auditor (TPA) to check the integrity of outsourced data and be worry-free. To securely introduce an effective TPA, the auditing process should bring in no new vulnerabilities towards user data privacy, and introduce no additional online burden to user. In this paper, we propose a secure cloud storage system supporting privacy-preserving public auditing. We further extend our result to enable the TPA to perform audits for multiple users simultaneously and efficiently.